τριςχίλιοι

αι, α, Subst.
A. Abh.Berl. Akad. 1925 (5).25 (Cyrene):—three thousand, ll.20.221, Hdt. 7.97, etc.: in sg. with collective Subst., ἀσπὶς τρισχιλία Longus 3.1.
II. οἱ τ., at Athens, the 3000 nominated by the 30 Tyrants, X. HG 2.3.18.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project